baber/WOPTO huggingface dataset:
Patent GB-533015-A (GB)
Title: Improvements in or relating to reducing or grinding material
IPC: B02C19/06
Filed: 1939-07-03
Abstract: 533,015. Cellulose-ester and synthetic-resin articles. KIDWELL, C. H. July 3, 1939, No. 19370. [Classes 2 (ii) and 2 (iii)] [Also in Group II] In apparatus wherein solid material is reduced by attrition as it is carried by a fluid along a curved pipe or through a curved chamber, the pipe or chamber is constructed of, or lined with, material of high di-electric strength and low conductivity, for example, cellulose derivatives, such as cellulose acetate, or synthetic plastics, such as phenol-formaldehyde urea-formaldehyde, vinyl, methyl-methacrylate, or glycerylphthalate resins. Adhesion of material to the wall of the pipe or chamber is thus prevented. Fig. 1 shows simple form of apparatus comprising a curved pipe 30. The fluid enters through an injector 39 drawing in the material under treatment from a hopper 41 and passing through a nozzle 37 to the pipe 30. Auxiliary jets of fluid are supplied through nozzles 34, 35. Coarser solid matter tends to remain on the outer side of the curve and the reduced matter is carried away by the fluid through the outlet 33. A second curved section may be provided in continuation of the section 30, this section being either in the plane of the section 30 or at right angles thereto. Fig. 5 shows a closed chamber confining two curved sections 47, 49. The fluid and material enter at an inlet 46. After passing round the chamber reduced material is carried off through an outlet 51 directed backwards on the inner side of the curve and coarser material joins that freshly supplied and is carried round the chamber a second time. Fig. 9 shows the attrition chamber in the form of a spiral with inlet 62 and outlet 70. A pipe 66 connects the outer side of the curve to the inlet end of the chamber and serves to pass unreduced material back for further treatment. A form of apparatus is also shown in which the chamber takes the form of a helical coil. As shown in Fig. 12, the attrition chamber 76 has the form of a toroid with inlet 77 and auxiliary jet nozzles 82. The reduced matter is carried off through passages 79 to a central chamber 78. As shown in Fig. 14, the inlet 97 is connected to an inner feed tube 100 with apertures 101 through which the fluid and material enter the attrition chamber 100.
Patent GB-261312-A (GB)
Title: Improvements in snare drums such as orchestral side drums
IPC: G10D13/02
Filed: 1926-08-05
Abstract: 261,312. Matthews, A. F. Aug. 5, 1926. Drums. - A quickrelease for the snares 2 of a snare-drum comprises a cam 7 with finger-piece 9 which is pivoted on the rod 4 to which the snares are attached at one end, and bears on a bracket 5 through which the rod 4 moves longitudinally. At the other end the snares are attached to a fine adjustment comprising a nut which screws on the end of a rod such as 4 against a bracket such as 5.
Patent GB-1361204-A (GB)
Title: V-belt and method of forming same
IPC: B29D29/10
Filed: 1971-11-12
Abstract: 1361204 Improving adhesion SVERIGES FORENADE TRIKAFABRIKER AB 12 Nov 1971 19437/71 Headings D1K and D1P [Also in Divisions B5 and F2] A warp-knitted tricot fabric is knitted from two sets of continuous filament thermoplastic synthetic warp yarns Y-1 and Y-2 to form longitudinally extending wales of stitch loops indicated at W-1, W-2, W-3 and W-4. During the knitting, the set of warp yarns Y-1 forms stitch loops in each course and the yarns are lapped back and forth between spaced wales and across one wale to form relatively long diagonally extending laps. The set of warp yarns Y-2, forms stitch loops in successive courses and the yarns are knitted together on plated relationship with stitch loops of the yarns Y-1, the yarns Y-2 being lapped back and forth between immediately adjacent wales to form relatively short diagonally extending laps.  The adhesion of the fabric to rubber may be improved by immersing it in a bath containing an isocyanate in a solvent, followed by impregnating it with an elastomeric material, overfeeding the treated fabric, heat-treating it while it is being over fed and drying the fabric. In an alternative procedure, the isocyanate impregnated fabric is immersed in a solvent for the isocyanate prior to impregnation with the elastomer.
Patent GB-478210-A (GB)
Title: Improvements in or relating to cooling systems for the engines of aircraft
IPC: F01P3/22
Filed: 1936-07-13
Abstract: 478,210. Cooling systems for engines. HEINKEL, E. July 13, 1936, No. 19441. Convention date, July 12, 1935. [Class 29] An aircraft engine a is cooled by a liquid, e.g. glycol circulating in a closec cycle including a cool er c, which is coolec by an evaporating liquid, e.g. water, cir culating in a secon dary closed cycle in cluding a condense h. The primary cir cuit has a byepass conduit n controlled by a thermostatic valve e and the secondary circuit includes a valve f controlled by a thermostat or pressure sensitive device. The liquids are circulated by pumps d, i and are in counterflow in the cooler c. The cold part of the cooler may be used to cool lubricating oil in a circuit m. The system permits the use of a primary liquid of high boiling point and of a condenser h of light gauge metal for the lower temperature of the secondary liquid. The condenser may be in the wing of the aircraft as shown, or may be cooled by a further cooling circuit. Several secondary circuits in parallel may be employed.
Patent GB-1130544-A (GB)
Title: Improvements in or relating to ribbon mechanisms for typewriters
IPC: B41J35/20
Filed: 1965-11-03
Abstract: 1,130,544. Typewriters. OKI ELECTRIC INDUSTRY CO. Ltd. 3 Nov., 1965 [25 Nov., 1964; 26 Dec., 1964], No. 19455/68. Divided out of 1,130,543. Heading B6F. General.-A typewriter has a detachable unitary ribbon feed mechanism comprising a pair of ribbon spools 32 (34), a feed mechanism including both automatic and manual means for reversing the direction of feed. Ink-ribbon feed mechanism.-The ink-ribbon 31, Fig. 2 (not shown), is driven, according to which spool is winding, by pawl 37, 38 actuated by cam lever 56 and a cam 54 axially slidable on a rotating shaft 7. Pawls 60, 61 are detents to prevent reverse movement of ratchets 39, 40. Ribbon-reversing automatic.-Only one pawl 37 or 38 engages the ratchets 39, 40 at one time according to the position of a lever 33 having two cam surfaces 35, 36 which move one or the other pawls 37, 38 away from the ratchet teeth. Lever 33 is pivoted to two levers 45, 53 which are controlled by forks 43, 52 pivoted by a button on each end of the ribbon. When a button moves fork 43, or 52, either lever 45 engages the upper surface or lever 53 engages the underside of a cam rocked plate 46. This either raises or lowers the lever 33 which, by means of its surfaces 35, 36, sets the pawls 37, 38. Ribbon-reversing manual.-A lever 33 can alter the lever 34 directly, see Fig. 5 (not shown).
Patent GB-1040474-A (GB)
Title: Improvements in or relating to plough bodies
IPC: A01B15/00
Filed: 1963-05-14
Abstract: 1,040,474. Agricultural - implements. PATENT CONCERN N.V. May 14, 1963 [May 29, 1962], No. 19490/65. Divided out of 1,040,471. Heading A1B. The subject matter of this Specification is included in that of Specification 1040471 but the claims differ.
Patent GB-1205379-A (GB)
Title: Improvements in idler rollers for belt conveyors
Inventor: MCCULLAGH MORRIS BEHAN
IPC: B65G39/09
Filed: 1969-04-16
Abstract: 1,205,379. Conveyer rollers. M. B. Mc- CULLAGH. 16 April, 1969 [19 April, 1968] No. 19515/69. Heading B8A. [Also in Division F2] The bearings 1 at each end of an idler roller for belt conveyers are housed in an end cap 7 and sealed by means comprising a seal ring 17 on the roller shaft 2 having a sealing lip 18 engaging the base 19 of an annular recess 10 in the cap 7 and an end shield 20 which is secured to the shaft and has an outer peripheral lip 22 engaging with clearance in an annular groove 23 in the cap 7. The roller comprises a tube 5 of reinforced synthetic resin having the end caps 7 cemented thereto at 6.
Patent GB-1518076-A (GB)
Title: Ceramic rotor blade assembly for a gas turbine engine
IPC: F01D5/30
Filed: 1977-05-10
Abstract: 1518076 Rotor blade fixing WESTINGHOUSE ELECTRIC CORP 10 May 1977 [17 May 1976] 19524/77 Heading FIT Ceramic gas turbine blades 20 are attached to a ferritic metal rotor 18 by engagement of their roots 44 between the heads 32 of metal intermediate members 26 themselves mounted in axial slots 24 in the rotor. Ceramic vibration dampers 54 engage blade platforms 50 centrifugally. Ceramic dampers 62 are also disposed in tip shroud slots 60. Cooling air ducts 39 are provided in members 26.
Patent GB-168217-A (GB)
Title: Improvements in adjustable spanners
IPC: B25B13/14
Filed: 1920-07-08
Abstract: 168,217. Edzards, A. July 8, 1920. No Patent granted (Sealing fee not paid). Sliding-jaw wrenches. - A spanner, in which a movable jaw is attached to a rack, operated through a worm-wheel by a worm on a spindle in the handle, the handle is pivoted relatively to the fixed jaw in order to cause the jaws to approach and grip the work. The fixed jaw 2 is formed integral with a casing 1, and the adjustable jaw, attached to a rack 9 is slidably-mounted, by means of shoulders 5 ,on cross-bars 4 of the casing. A pinion 8, engaging the rack 9 is mounted on a shaft 7 in the casing, and is actuated by a worm 10 on a spindle 11, rotatably mounted in the handle 12 and provided with an operating-head 13 at the end of the handle. The handle 12. which is passed through an elongated opening 16 in the bottom of the casing, is bifurcated at its forward end to form cheeks 14 which enclose the worm and pinion, and by means of which it is pivoted on the shaft 7. A spring 17 tends to keep the parts in the position shown. When the work is clamped between the jaws and the handle swung against the action of the spring 17, the jaws are forced closer together by means of the handle pivoting on the shaft 7.
Patent GB-1513161-A (GB)
Title: Systems for internal combustion engines
IPC: F02D35/00
Filed: 1975-05-09
Abstract: 1513161 Automatic control of engine exhaust ROBERT BOSCH GmbH 9 May 1975 [13 May 1974 6 Aug 1974] 19559/75 Heading G3R [Also in Divisions Fl and H3]  The ratio of fuel to air supplied to an I.C. engine is controlled by a system in which a solenoid valve in a control pressure circuit of the fuel supply is energized in an on/off manner with a duty ratio controlled by an amplifier which compares a reference voltage with the combination of a sawtooth voltage and a voltage which represents an engine operating parameter (exhaust gas composition). Fuel to injection valves is metered by a valve device 7 having outlets 25 and a spool valve 11 adjusted in response to inlet air-flow by a mechanical link 8, pivoted at 9 and attached to a disc 3 in induction pipe 1, 2. The flow is also controlled by diaphragm flaps 22 according to the pressure in chambers 23. As shown, this pressure is regulated by the solenoid valve 35 controlled as specified by a transistor switching circuit 47, Fig.3 (not shown), in response to the output of an oxygen sensor 48 in the engine exhaust. Back pressure for the spool valve is provided by fuel in line 29. In an alternative arrangment, Fig.2 (not shown), the diaphragms 22 are spring-loaded and the solenoid valve regulates the back pressure on the spool. The oxygen sensor used does not produce a voltage when below working temperature and a circuit is provided within 47, Fig.6 (not shown), to produce a suitable voltage in its stead for use when the engine is restarted after shut down, the engine being warm but the exhaust system cold. The circuit comprises a monostable timing circuit and an AND gate whereby a voltage, dependent on engine temperature (detected by a NTC resister), is produced for a pre-set time when an engine start signal is present together with an "engine warm" signal (from a second NTC resistor). Two saw-tooth generators are described, one producing a linear waveform and the other having an exponential function, Figs. 4 and 5 (not shown), (see Division H3).
Patent GB-1092744-A (GB)
Title: Improvements in or relating to methods for vapour deposition of films and films so made
Inventor: DASILVA EDWARD MARTIN
IPC: C23C14/32
Filed: 1965-05-10
Abstract: A continuous film, e.g. of polymeric or metallic material, is produced on a substrate 35 in an evacuated chamber 3, e.g. at 10-6 Torr, by directing a stream of evaporated material from a source 15 on to the surface of the substrate 35 and, prior to deposition on the surface, passing the stream through an electron beam generated by a gun 27 so as to create ions which act as nucleation sites when upon the substrate surface, the degree of ionization of the stream being controlled to produce sufficient nucleation sites to cause substantially all the evaporant material directed on to the substrate to enter into forming the deposited film.  The evaporation source 15, which may be bisphenol-A-epichlorohydrin, silicone oil or a metal, is heated by a resistance <PICT:1092744/C6-C7/1> heater and the evaporated material directed by a cylindrical baffle 25 of insulating material.  The electron gun 27 within a metallic shield 37 comprises an anode 29, filament 31 and grid 33.  A wire mesh 39 connected to a substrate holder 45 ensures a free field space over the substrate 35. A movable shutter 41 is displaced to expose the substrate only during the deposition process. 43 is a pattern defining mask.  Substrate holder 45 is biased positively and reduces the risk of reevaporation. By adjusting the temperature of the source 15 and density of the electron beam the proportion of ionized to unionized material can be adjusted.  As shown substrate 35 is a conductive thin film insulated from substrate holder 45 by a previously deposited polymeric film 35'.  The process may be employed in making the gate conductor of a cryotron.
Patent GB-494367-A (GB)
Title: Improvements relating to belts for personal wear
IPC: A44B11/20
Filed: 1937-07-15
Abstract: 494,367. Belts for personal wear. MASON & SONS, Ltd., D., and MASON. L. K. July 15, 1937, No. 19596. [Class 141] [Also in Group XXV] A belt for personal wear is secured in place by passing a spatulalike head 4a of a cranked plate 4 through one or other of T-shaped slots 7 in the belt, a neck portion 4b of the plate .engaging with the stem portion of the slot.
Patent GB-880464-A (GB)
Title: Steroid compounds and the preparation thereof
IPC: C07J5/00
Filed: 1959-06-08
Abstract: The invention comprises compounds of the formula <FORM:0880464/IV (b)/1> wherein X is hydrogen, fluorine, chlorine, bromine, iodine or a methoxy or ethoxy group; Y is a keto or b -hydroxyl group; R is hydrogen or an acyl hydrocarbon group derived from a mono or dicarboxylic acid containing up to twenty carbon atoms and alkali and alkaline earth metal salts of these compounds when the acyl group is derived from a dicarboxylic acid; compounds of the formula <FORM:0880464/IV (b)/2> <FORM:0880464/IV (b)/3> wherein R11 is an alkylenedioxy group containing from two to three carbon atoms and R1 is hydrogen or an acyl group containing up to four carbon atoms and in addition the D 1, D 6, and D 1,6 derivatives of compounds of the formulae I and III and a process for preparing steroid compounds having the formula I including the D 1, D 6 and D 1,6 analogues thereof, which comprises treating a compound having the formula III or a D 1, D 6, or D 1,6 analogue thereof with a reagent of the formula HX where X is halogen, methoxy or ethoxy to cleave the oxide ring and introduce X at the 9a -position and b -hydroxyl at the 11-position, and if desired in the case where X is a bromine atom, replacing said bromine atom with hydrogen by treatment with zinc and acetic acid, and, also if desired, oxidising the 11b -hydroxy group to a keto group.  Compounds having the formula III and the D 1, D 6 and D 1,6 analogues thereof are obtained by treating a compound having the formula <FORM:0880464/IV (b)/4> or the D 1, D 6, or D 1,6 analogues thereof with potassium acetate.  Compounds having the formula II are obtained by treating a compound having the formula <FORM:0880464/IV (b)/5> wherein R11 is an alkylenedioxy group containing from 2-3 carbon atoms, and R1 is hydrogen or an acyl hydrocarbon group containing up to four carbon atoms, with triphenyl phosphine methylene.  The double bonds may be introduced by means of quinone and selenium dioxide.  Illustrative products of the invention are 9,11-oxido-16-methylene-D 5-pregnene-17,20-diol-3,20-dione 3,20-diethylene ketal 21-acetate, 9b ,11b , oxido - 16 - methylene - D 4 - pregnene - 17a , 21 - diol-3,20-dione 21-acetate, 16-methylene-D 1,4,6-pregnatriene - 17a , 21 - diol - 3, 11, 20 - trione 21-acetate, and the 9-halo-, 9-methoxy-, 9-ethoxy derivatives thereof, the corresponding 11-keto compounds and the corresponding D 1,4, D 4,6 and D 4 compounds.ALSO:Pharmaceutical compounds comprise a compound having the formula <FORM:0880464/VI/1> wherein X is hydrogen, fluorine, chlorine, bromine, iodine, methoxy or ethoxy, Y is a keto or b -hydroxy group, R is hydrogen or an acyl hydrocarbon group derived from a mono or di-carboxylic acid containing up to twenty carbon atoms, the alkali or alkaline earth metal salts derived from the 21-hemi-esters of these compounds, the D 1, D 6 or D 1,6 analogues thereof together with a pharmaceutically acceptable carrier. They are administered orally as tablets, aqueous suspensions or elixirs, topically as ointments and salves, and in aqueous suspension for injection.
Patent GB-1177763-A (GB)
Title: Improvements in Load Transferring Devices
Inventor: UTTING JAMES CHRISTIE
IPC: B65G13/12
Filed: 1966-05-04
Abstract: 1,177,763. Roller conveyers. TECHNOLOGY, MINISTER OF. 4 May, 1967 [4 May, 1966], No. 19683/66. Heading B8A. A device particularly suitable for unloading aircraft comprises a pair of ramps 1, 2 connected by a pivot bar 3 which may be raised or lowered by a pair of tripod hoists 4. Each ramp includes roller trains 7, the free end of ramp 1 havin brackets 8 for attachment to an aircraft cargo platform 9 and the free end of ramp 2 having wheels 10. For controlling a load 14, a winchoperated restraining cable 15 is provided. Hydraulic jacks may replace the tripod hoists and ball trains may be used in place of the rollers. In operation, the bar 3 is raised such that the ramp 1 forms an in-line extension of the cargo platform 9, the load 14 being moved on to the ramp 1. The bar 3 is now lowered. Fig. 3 (not shown), such that the ramps are equally inclined and form a continuous sloping surface. The load under control of the cable 15 is now allowed to move on to the ramp 2, whereafter the bar 3 is further lowered until the ramp 2 is horizontal, Fig. 4 (not shown). The load may now be handled by any other convenient means. The device may be used for loading.
Patent GB-235748-A (GB)
Title: Improvements in and relating to road making and repairing apparatus
IPC: E01C23/14
Filed: 1924-08-20
Abstract: 235,748. Hines, J. Aug. 20, 1924. Surface-heating apparatus.-The effective area of the lower open end of the hood e is varied by hinged flaps k counterbalanced on shafts j by weights l. The rear portion of the hood has a hinged plate e<1> which can be raised by a winch r to permit of spraying tar on the road surface under the' hood. The hood terminates in hinged flaps g which can be partially raised to permit of the escape of steam in wet weather. The hood is carried at the rear of a tar boiler the flue c of which is fitted with a damper f. In a modification, a single hinged flap is retained in various positions by an adjustable stop.
Patent GB-271295-A (GB)
Title: Improvements in and relating to watertight electric blasting fuses
IPC: F42B3/103
Filed: 1926-08-10
Abstract: 271,295. Schmitt, N. Aug. 10, 1926. Blasting fuzes.-A plug of fusible material c, Fig. 1, embedding an electric fuze a is tapered for insertion into the mouth of a detonator case d, Fig. 3, and the mouth of the case is externally heated by a die c before the insertion of the plug, the surface of which is thus melted, facilitating the insertion and ensuring a watertight joint. The tip of the fuze a may be coated with fusible material, if the plug is to be transported before insertion into the detonator case..
Patent GB-1138083-A (GB)
Title: Polyamide foams
Inventor: EDGAR OWEN BURCHELL
IPC: C08J9/06
Filed: 1966-05-04
Abstract: 1,138,083. Polyamide foams. IMPERIAL CHEMICAL INDUSTRIES Ltd. 12 April, 1967 [4 May, 1966], No. 19753/66. Headings C3C and C3R. Polyamide foams are produced by heating a mixture comprising a polyamide, a blowing agent which decomposes under the action of heat to yield a gas and an inorganic or organic oxy-acid of phosphorus. The oxy-acid used may be phosphonic acid, hypophosphonus acid, pyrophosphonic acid or an organic oxy-acid such as phosphinic or phosphonic acid. Suitable blowing agents include carbonates, bicarbonates, oxamates, azides, azodicarbonamides, hydrazides, semicarbazides and polymethylmethacrylate. The preferred polyamides are of low molecular weight derived from caprolactam or a mixture of equimolar parts of adipic acid and hexamethylene diamine, and copolymers thereof. In the example, molten polyhexamethyleneadipamide is foamed by blowing with polymethylmethacrylate in the presence of cyclohexyl phosphonic acid. The acid may be added at either the polymerization or the foaming stage of the process.
Patent GB-1249554-A (GB)
Title: Improvements relating to flush tanks
IPC: E03D1/32
Filed: 1969-04-18
Abstract: 1,249,554. Flushing cisterns: AMERICAN STANDARD Inc. 18 April, 1969 [22 Aug., 1968], No. 19815/69. Heading E1C.  A valve-discharge flushing cistern has an inlet valve IV from which water passes both down through a tube HT and also through a second tube RFT into a channel in an elongate member LV. whch supports a float. FL and is pivoted at one end to a rod RL which is pivoted at RLX on the inlet valve body. The discharge valve FV can be operated either by an upper knob TNU or a lower knob TNL, in each case via a three-armed pivoted member TF. The inlet valve is opened by rotation of a pivoted rod PG caused via teeth RLT on rod RL as the float drops. The float FL has an upper apertured chamber BL which causes an extra upthrust on the member LV to close the inlet valve when the water level in the cistern has reached the required level. Easily releasable plastics catches are provided to retain all the pivot pins e.g. LVX in place, and the lower edge LE of the cistern is rounded to quieten the flow of water from tube HT into the cistern.